Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “rheostat”

rheostat

noun [C] uk   /ˈriː.ə.stæt/ us    /-oʊ-/ specialized
a device used to control and change the flow of electric current through a machine such as an electric lightElectrical components and circuitryMachinery and machinesHousehold equipment and domestic chores
(Definition of rheostat from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of rheostat?
Add Cambridge dictionaries to your browser to your website

Translations of “rheostat”

Word of the Day

improvisation

a performance that an actor, musician, etc. has not practised or planned

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More